﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.ServiceModel;

namespace Airport
{
    [ServiceContract(CallbackContract = typeof(IAirportCallback))]
    public interface IAirportDataUpdateService
    {
        [OperationContract(IsOneWay = true)]
        void RegisterForFlightUpdates();
        [OperationContract(IsOneWay = true)]
        void UnregisterForFlightUpdates();
    }
}